Table 1 Baseline characteristics of the total group of UA patients and the subgroups of patients with UA according to the 1987 and the 2010 criteria
Total group of UA patients | Subgroup of 1987 UA patients | Subgroup of 2010 UA patients | |
|---|---|---|---|
(n = 1430) | (n = 1352) | (n = 838) | |
Age (years), mean (SD) | 53 (17) | 53 (17) | 51 (17) |
Female, n (%) | 882 (62) | 837 (62) | 494 (59) |
Symptom duration (weeks), median (IQR) | 14 (6-31) | 14 (6-31) | 12 (5-28) |
66-SJC, median (IQR) | 3 (1-7) | 3 (1-7) | 2 (1-4) |
68-TJC, median (IQR) | 4 (1-10) | 4 (1-10) | 2 (1-5) |
CRP (mg/ml), median (IQR) | 8 (3-22) | 8 (3-22) | 6 (3-19) |
ACPA positivity, n (%) | 297 (21) | 283 (21) | 48 (6) |
RF positivity, n (%) | 374 (26) | 359 (27) | 68 (8) |
anti-CarP positivity, n (%) | 271 (19) | 257 (19) | 77 (9) |